Trading questions
Why do traders fail prop firm challenges?
Maxwell Norman · October 13, 2026 · 3 min read
Mostly on the loss limits, not the strategy. A normal losing streak, sized for the profit target, breaks the drawdown rule. At a 45% win rate a run of 6 losses is more likely than not over 100 trades: about 5.9% of the account at 1% risk, about 11.4% at 2%. Size from the drawdown limit and set your own daily stop below the firm's.
Most prop firm challenges are not failed on strategy. They are failed on the rules: a daily loss limit hit on one bad morning, or an overall drawdown limit reached during a losing streak that was always going to happen. The profit target pulls traders toward size, and the loss limits punish exactly that.
The arithmetic behind it
Rules differ by firm, so take a common shape as an example: a 5% daily loss limit and a 10% overall limit. At a 45% win rate over 100 trades, a run of 6 losses in a row is more likely than not. Risking 1% a trade, that run costs about 5.9% of the account. Risking 2%, it costs about 11.4%, which is past a 10% overall limit before the strategy has done anything wrong.
The same losing run that is normal for the strategy is fatal for the account size the trader chose. Passing is mostly a sizing decision made before the first trade.
How to give yourself a real chance
Size from the overall limit, not the target. Work out the losing streak your win rate makes likely, and choose a risk per trade that keeps it well inside the drawdown limit.
Set your own daily stop below the firm’s. If the firm allows 5% a day, stop yourself at 2% or 3%. The gap is your margin for slippage and for the one trade you will take badly.
Track rule breaks, not just P&L. The trades that break your own rules are the ones that end challenges. Travise marks each trade kept or broken against your rules and shows what the broken ones cost, and its free losing streak calculator shows the drawdown a normal run of losses produces at your size.